U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Si7Ge by Materials Project
Abstract
GeSi7 is Moissanite 9R-like structured and crystallizes in the cubic P-43m space group. The structure is three-dimensional. Ge4+ is bonded to four equivalent Si+0.57- atoms to form GeSi4 tetrahedra that share corners with twelve equivalent SiSi4 tetrahedra. All Ge–Si bond lengths are 2.41 Å. There are two inequivalent Si+0.57- sites. In the first Si+0.57- site, Si+0.57- is bonded to one Ge4+ and three equivalent Si+0.57- atoms to form corner-sharing SiSi3Ge tetrahedra. All Si–Si bond lengths are 2.37 Å. In the second Si+0.57- site, Si+0.57- is bonded to four equivalent Si+0.57- atoms to form SiSi4 tetrahedra that share corners with four equivalent GeSi4 tetrahedra and corners with eight equivalent SiSi4 tetrahedra.
- Publication Date:
- Other Number(s):
- mp-1094056
- DOE Contract Number:
- AC02-05CH11231
- Research Org.:
- LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Collaborations:
- The Materials Project; MIT; UC Berkeley; Duke; U Louvain
- Subject:
- 36 MATERIALS SCIENCE; Ge-Si; Si7Ge; crystal structure
- OSTI Identifier:
- 1674491
- DOI:
- https://doi.org/10.17188/1674491
Citation Formats
Materials Data on Si7Ge by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1674491.
Materials Data on Si7Ge by Materials Project. United States. doi:https://doi.org/10.17188/1674491
2020.
"Materials Data on Si7Ge by Materials Project". United States. doi:https://doi.org/10.17188/1674491. https://www.osti.gov/servlets/purl/1674491. Pub date:Mon May 04 04:00:00 UTC 2020
@article{osti_1674491,
title = {Materials Data on Si7Ge by Materials Project},
abstractNote = {GeSi7 is Moissanite 9R-like structured and crystallizes in the cubic P-43m space group. The structure is three-dimensional. Ge4+ is bonded to four equivalent Si+0.57- atoms to form GeSi4 tetrahedra that share corners with twelve equivalent SiSi4 tetrahedra. All Ge–Si bond lengths are 2.41 Å. There are two inequivalent Si+0.57- sites. In the first Si+0.57- site, Si+0.57- is bonded to one Ge4+ and three equivalent Si+0.57- atoms to form corner-sharing SiSi3Ge tetrahedra. All Si–Si bond lengths are 2.37 Å. In the second Si+0.57- site, Si+0.57- is bonded to four equivalent Si+0.57- atoms to form SiSi4 tetrahedra that share corners with four equivalent GeSi4 tetrahedra and corners with eight equivalent SiSi4 tetrahedra.},
doi = {10.17188/1674491},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}
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